* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #ffffff;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: #667eea;
    color: white;
    padding: 2rem 0;
    margin-bottom: 0;
}

.header-main {
    text-align: center;
    position: relative;
}

header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.notification-counter {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    text-align: center;
}

.counter-number {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    display: block;
    line-height: 1;
}

.counter-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.9);
    display: block;
    margin-top: 0.25rem;
}

main {
    background: white;
    border-radius: 0;
    padding: 3rem;
    margin-bottom: 0;
    box-shadow: none;
    width: 100%;
    flex: 1;
}

section {
    margin-bottom: 3rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #555;
}

.hero {
    text-align: center;
    padding: 2rem 0;
}

.hero p {
    font-size: 1.3rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    padding: 1.5rem;
    border-radius: 12px;
    background: white;
    border: 2px solid #667eea;
    color: #333;
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.step:hover {
    transform: translateY(-3px);
    background: #f8f9fa;
}

.step-number {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: #667eea;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.features-fullwidth {
    background: #667eea;
    padding: 4rem 0;
    width: 100%;
}

.features-fullwidth h2 {
    color: white;
}

.features-fullwidth .feature {
    background: white;
    box-shadow: none;
    border: none;
}

.mobile-app {
    background: white;
    padding: 4rem 0;
    width: 100%;
}

.mobile-app h2 {
    color: #333;
    text-align: center;
}

.mobile-app p {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 5rem;
}

.app-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
}

.app-description {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
}

.app-description h3 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.app-description p {
    text-align: left;
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.app-links {
    text-align: center;
    position: relative;
    height: auto;
    display: block;
}

.app-screenshot {
    max-width: 280px;
    max-height: 500px;
    width: auto;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    display: block;
    margin-left: auto;
    margin-right: auto;
    background: transparent;
}

.download-link {
    text-align: center;
    margin-top: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.download-link a {
    grid-column: 2;
}

.github-section {
    background: #667eea;
    padding: 4rem 0;
    width: 100%;
    margin-top: auto;
    margin-bottom: 0;
    position: relative;
}

.github-section h2 {
    color: white;
    text-align: center;
}

.github-section p {
    color: white;
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.github-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.developer-credit {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
}

.developer-link {
    color: white;
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9rem;
    transition: opacity 0.3s ease;
    display: inline-block;
}

.developer-link:hover {
    opacity: 0.8;
}

.github-link {
    background: white;
    color: #667eea;
    padding: 1rem 2rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    display: inline-block;
}

.github-link:hover {
    transform: translateY(-3px);
    background: #f8f9fa;
    color: #5a6fd8;
}

.fas, .fab {
    margin-right: 0.5rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    transition: transform 0.3s ease;
    border: none;
    box-shadow: none;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .notification-counter {
        position: static;
        transform: none;
        margin-top: 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    header p {
        font-size: 1rem;
    }
    
    .counter-number {
        font-size: 1.5rem;
    }
    
    main {
        padding: 1.5rem;
        margin: 0;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .app-info {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .app-description p {
        text-align: center;
    }
    
    .app-links {
        height: auto;
    }
    
    .app-screenshot {
        max-width: 200px;
        max-height: 400px;
        margin-bottom: 1.5rem;
    }
    
    .download-link {
        margin-top: 0;
        padding-top: 0;
        display: block;
        text-align: center;
    }
    
    .download-link a {
        grid-column: auto;
    }
    
    .github-links {
        flex-direction: column;
        align-items: center;
    }
}